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dc.contributor.authorParkin, John David
dc.contributor.authorHähner, Georg
dc.date.accessioned2015-06-05T23:10:55Z
dc.date.available2015-06-05T23:10:55Z
dc.date.issued2014-06-06
dc.identifier122486215
dc.identifierba69d5bb-d88b-47f7-88d1-ece07370c1ec
dc.identifier84900422402
dc.identifier000336728400014
dc.identifier.citationParkin , J D & Hähner , G 2014 , ' Calibration of the torsional and lateral spring constants of cantilever sensors ' , Nanotechnology , vol. 25 , no. 22 , 225701 . https://doi.org/10.1088/0957-4484/25/22/225701en
dc.identifier.issn0957-4484
dc.identifier.otherORCID: /0000-0002-6765-344X/work/60426709
dc.identifier.urihttps://hdl.handle.net/10023/6771
dc.descriptionFinancial support from the EPSRC (EP/K000411/1) and the University of St. Andrews under an Impact Acceleration Account (EP/K503940/1) are gratefully acknowledged.en
dc.description.abstractA method suitable for the calibration of the spring constants of all torsional and lateral eigenmodes of micro- and nanocantilever sensors is described. Such sensors enable nanomechanical measurements and the characterization of nanomaterials, for example with atomic force microscopy. The method presented involves the interaction of a flow of fluid from a microchannel with the cantilever beam. Forces imparted by the flow cause the cantilever to bend and induce a measurable change of the torsional and lateral resonance frequencies. From the frequency shifts the cantilever spring constants can be determined. The method does not involve physical contact between the cantilever or its tip and a hard surface. As such it is non-invasive and does not risk damage to the cantilever. Experimental data is presented for two rectangular microcantilevers with fundamental flexural spring constants of 0.046 and 0.154 N/m. The experimentally determined torsional stiffness values are compared with those obtained by the Sader method. We demonstrate that the torsional spring constants can be readily calibrated using the method with an accuracy of around 15%.
dc.format.extent9
dc.format.extent412970
dc.language.isoeng
dc.relation.ispartofNanotechnologyen
dc.subjectCantilever sensorsen
dc.subjectHigher torsional and lateral modesen
dc.subjectTorsional and lateral spring constantsen
dc.subjectMicrochannelen
dc.subjectFluid flowen
dc.subjectFluidic forcesen
dc.subjectQD Chemistryen
dc.subjectBDCen
dc.subject.lccQDen
dc.titleCalibration of the torsional and lateral spring constants of cantilever sensorsen
dc.typeJournal articleen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEPSRCen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.identifier.doi10.1088/0957-4484/25/22/225701
dc.description.statusPeer revieweden
dc.date.embargoedUntil2015-06-06
dc.identifier.grantnumberep/k000411/1en
dc.identifier.grantnumberEP/K503940/1en


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